Speaker
Zhou Yang
(Tsinghua University)
Description
In high-finesse optical enhancement cavities operating at power levels of hundreds of kilowatts to megawatts, thermally induced mirror deformation becomes a critical limiting factor. This deformation detunes the cavity resonance, degrades the efficiency of power buildup, and can drive the system into a regime of parametric instability. To mitigate this effect, we propose a novel, non-contact technique for the active compensation of mirror surface distortion using dynamically controlled gas pressure. Finite element analysis and multiphysics simulations confirm the efficacy of this method in stabilizing the cavity mode under high intracavity power, offering a promising solution for scaling the performance of future high-power laser systems.
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Authors
Zhou Yang
(Tsinghua University)
Xing Liu
(Tsinghua University)
Yan Zhao
(Tsinghua University)
yutong huang
(Tsinghua University)
Qili Tian
(Tsinghua University)
Chuanxiang Tang
(Tsinghua University)
Lixin Yan
(Tsinghua University)